2024 - Sustainable Industrial Processing Summit
SIPS 2024 Volume 8. Monteiro Intl. Symp / Composite, Ceramic and Nano Materials Processing
| Editors: | F. Kongoli, P. Assis, H.A.C. Lopera, S. Diaz, V. Scarpini Candido |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2024 |
| Pages: | 288 pages |
| ISBN: | 978-1-998384-18-1 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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CALCULATION OF THE TRANSMISSION FACTOR FOR ELECTROMAGNETIC RADIATION AND NEUTRONS FOR COMPOSITES BASED ON EPOXY RESIN AND GRAPHENE NANOTUBES
Thomaz Jacintho Lopes1; Ary Machado de Azevedo2; Marcos Paulo Cavaliere de Medeiros2; Sergio Monteiro2; Fernando Manuel Araújo Moreira2;1MILITARY INSTITUTE OF ENGINEERING, Duque de Caxias, Brazil; 2MILITARY INSTITUTE OF ENGINEERING, Rio de Janeiro, Brazil;
Type of Paper: Regular
Id Paper: 210
Topic: 18
Abstract:
Materials and that can be used to protect against ionizing radiation. [1] The present work aimed to calculate the transmission factors of the epoxy matrix composite with graphene nanotubes at the proportions of 10%, 30%, and 40%, respectively, for use as shielding for electromagnetic and neutron radiation.A computational model was created to evaluate, through simulation using the Monte Carlo method with MCNP5, the radiation transmitted by epoxy-based polymer matrix composite materials and graphene nanotubes [2],[3]. Three study model compositions with 10%, 30%, and 40% graphene nanotubes in the matrix were analyzed. Initially, the designed setup was chosen because it had already been used in other works. The experiment was also simulated for fast neutrons (8 MeV, 6 MeV, and 1 MeV), epithermal neutrons (1 eV), and thermal neutrons (0.025 eV and 0.001 eV) with energies [5],[6]. For both photons and neutrons, the Tally F1 was discretized into 100 energy intervals to obtain data for calculating the transmission factor [4]. It is observed that for electromagnetic radiation, there is no significant change with the addition of material for the energy levels presented. However, the material composites behave relatively well for the attenuation of fast and thermal neutrons. It can be seen that for 1 MeV neutrons, the material composite had a significant improvement with the addition of fiber. Therefore, it is concluded that for fast neutron shielding, the material composite performed better. It can be seen that the composite in question showed a high upscattering rate, and it should be analyzed which element acted for this.